A simple coating may contain a biological bullet, which is able to kill the most resistant microbes.
Polymer coating developed by biomedical engineer Mary Chan Nanyang Technological University in Singapore and her colleagues have used contact lenses for the two manufacturers. During use, the coating kills 99 percent of bacteria and fungi with which it comes into contact. Coverage can also be used for medical devices, such as, for example, catheters, reducing the need for strong disinfectants and helping to slow the development of resistance in bacteria that colonize the surface of human tissues.
Polymer coating developed by biomedical engineer Mary Chan Nanyang Technological University in Singapore and her colleagues have used contact lenses for the two manufacturers. During use, the coating kills 99 percent of bacteria and fungi with which it comes into contact. Coverage can also be used for medical devices, such as, for example, catheters, reducing the need for strong disinfectants and helping to slow the development of resistance in bacteria that colonize the surface of human tissues.
The idea of Chiang visited Mary, when she tried to find a way to fight bacteria on contact lenses, often being the source of infections that can seriously damage your eyes. For example, Pseudomonas aeruginosa - bacteria that can actually digest the cornea pupil.
Under the microscope the structure of the polymer coating resembles a sponge. Positive charges on its surface like a magnet attracts bacteria, because they have a negative surface charge. After that, the pores in the polymer involve bacteria inside yourself, breaking cell structures of parasitic organisms and killing them.
Chan has worked on anti-bacterial coating for a long time. She and graduate student Li Peng, developed before the other polymer, which was actually a lot of fluids and kill bacteria without harming human cells. This work was published in the journal Advanced Materials, in March of this year. An earlier version of antimicrobial polymer coatings Chan contact lens was originally developed in the last year and published in the printed edition of Nature Materials.
University press release at Nanyang reports that the latest cover of Dr. Mary Chan will help reduce the spread of disease in hospitals and even in kitchens, where bacteria and viruses are resistant to disinfection - a serious problem.
"Our long term goal is to synthesize our design in the form for internal use, so it can effectively treat bacterial infections within the human body, such as pneumonia and meningitis, replacing antibiotics as a standard treatment," added Chan.
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